<div xmlns:f="http://java.sun.com/jsf/core"
     xmlns:h="http://java.sun.com/jsf/html">
    <h:selectOneMenu id='height' size='10' value='#{compute.height}'
                     styleClass="ui-state-default ui-corner-all">
        <f:selectItems value="#{countries}"/>
    </h:selectOneMenu>
</div>